- Title: Suika Tsushin (Water Song Correspondence) - Authors: Kudo Rein, Higashi Naoko - ISBN: 978-4-86552-839-5 - Price: 2,000 yen + tax - Pages: 142 pages Thank you for viewing. This is a signed book by Kudo Rein and Higashi Naoko. I purchased it new and read it only once, so I believe it is in good condition. As it is a used item, please refrain from purchasing if you are sensitive to such things.